CVE-2023-1999

There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://chromium.googlesource.com/webm/libwebp	Product
https://security.gentoo.org/glsa/202309-05
https://chromium.googlesource.com/webm/libwebp	Product
https://security.gentoo.org/glsa/202309-05

Configurations

Configuration 1 (hide)

cpe:2.3:a:webmproject:libwebp:*:*:*:*:*:*:*:*

History

13 Feb 2025, 17:16

Type	Values Removed	Values Added
Summary	(en) There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.	(en) There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.

21 Nov 2024, 07:40

Type	Values Removed	Values Added
References	~~() https://chromium.googlesource.com/webm/libwebp - Product~~	() https://chromium.googlesource.com/webm/libwebp - Product
References	~~() https://security.gentoo.org/glsa/202309-05 -~~	() https://security.gentoo.org/glsa/202309-05 -
CVSS	v2 : ~~unknown~~ v3 : ~~7.5~~	v2 : unknown v3 : 5.3

Information

Published : 2023-06-20 12:15

Updated : 2025-02-13 17:16

NVD link : CVE-2023-1999

Mitre link : CVE-2023-1999

CVE.ORG link : CVE-2023-1999

JSON object : View

Products Affected

webmproject

libwebp

CWE

CWE-416

Use After Free

CWE-415

Double Free

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5.3 /10